I'm playing on Mac 10.7 and am completely blocked in editing levels. Regardless of how simple the change i've made was, It loads the "building geometry" bar to about 90% and it stops there. I still have the cycling wheel around the logo, so it's still "thinking," though I'm not sure what about.

It has never crashed or gotten frozen at this screen. I've never gotten an error message either. It just spins around and pretends to build my level forever until I cancel the build.

Cursory research suggests that not many people have experienced this bug, so there aren't any solutions or suggestions available. I've only found one person who has the same issue I do, and it was in a comment on youtube.

Previous to this point, I wasn't able to load ANY Portal 2 content. It would crash as soon as I attempted to load any gameplay. I fixed this by copying my portal 2 game files from my steamapps folder into my username folder. Now everything runs fine, except for this bug.

I've tried closing and restarting both Portal 2 and Steam, tried verifying my files. Any other suggestions and/or people with a similar issue?

I'm playing on Mac 10.7 and am completely blocked in editing levels. Regardless of how simple the change i've made was, It loads the "building geometry" bar to about 90% and it stops there. I still have the cycling wheel around the logo, so it's still "thinking," though I'm not sure what about.

It has never crashed or gotten frozen at this screen. I've never gotten an error message either. It just spins around and pretends to build my level forever until I cancel the build.

Cursory research suggests that not many people have experienced this bug, so there aren't any solutions or suggestions available. I've only found one person who has the same issue I do, and it was in a comment on youtube.

Previous to this point, I wasn't able to load ANY Portal 2 content. It would crash as soon as I attempted to load any gameplay. I fixed this by copying my portal 2 game files from my steamapps folder into my username folder. Now everything runs fine, except for this bug.

I've tried closing and restarting both Portal 2 and Steam, tried verifying my files. Any other suggestions and/or people with a similar issue?

Yeah, when the level editor was first released I had no problems. I only recently wanted to start it again, and I have had no luck. It also seems that most if not all of us play on a Mac. So it might be safe to assume this problem is only relative to OSX users.

Im on osx 10.7.5 and experiencing the same issue, I only started trying user built levels yesterday, and started trying to build them today. I can play other users levels, and I can create and save the levels I build, but not compile or "rebuild" them. My level geometry loading bar gets stuck at around 90% like several people mentioned. It seems to be a recent problem, so hopefully it is an easy fix?

Yeah, when the level editor was first released I had no problems. I only recently wanted to start it again, and I have had no luck. It also seems that most if not all of us play on a Mac. So it might be safe to assume this problem is only relative to OSX users.

All of the things that pop up so far are mac problems. I just recently got the computer version so I don't know how long this has been happening. Has there been any updates recently?

I have same problem and have struggled to find other people with the issue. I'm glad to see I'm not the only one. I have the game on Xbox 360, but the main reason I got it for my computer was the map editor and now I cannot even use it. >:(